Re: [foxboro] CALCA / Foxdraw / BAD I/O Graphic Question
- From: "rys" <rys@xxxxxxxxxxxxxx>
- To: "foxboro" <foxboro@xxxxxxxxxxxxx>
- Date: Tue, 4 Oct 2011 15:42:55 -0400
Jason,
It is my understanding that logic in the ECB blocks
performs per channel diagnostics and can set the BAD status for a single
point on the FBM. I.e. Set the corresponding CIN input BAD. Removing
an FBM from a base plate, taking an FBM off line, removing power from the
FBM, or removing the FBM cables connecting the FBM to the CP will not set
the BAD status, but will set the OOS (Out Of Service). The OOS bit
and the BAD bit are distinct, and you might want to use boolean input
C:B.CIN..BO in your logic which is BAD or OOS. In a CALCA SBD
command only sets BAD (RED) and not OOS (CYAN). If OOS and BAD
status are both set FoxView will display CYAN as a higher priority than
BAD.
Rick Rys P.E.
www.r2controls.com
508-339-6633 office
508-369-5186 Cell
On Tue,
October 4, 2011 9:51 am, SLADE Jason -NANTICOKE wrote:
> All
knowing list,
>
> Personal experience indicates that a
field device with two limit
> switches requires 5 states to
provide the operator with clear and
> accurate position indication
at all times.
>
> These 5 states include:
> -
open
> - closed
> - neither (midstroke/travelling)
> - both (oops!)
> - "I wish I could tell you, but I
haven't got a flippin' clue" (FBM /
> FCM / PIO bus
communication errors = CYAN)
>
> Using a CALCA block to
convert the Boolean INs to mapped bits in Long
> Integer 1 (LO01)
to drive a single bit-mapped graphic element (because
> layered
graphics will lie like a rug), I'm having a problem coming up
>
with a solution to the last state. For some unknown reason, steps 10
> and beyond of the following logic example (or the graphic config)
misses
> the mark. Either way, the graphic element won't turn
cyan:
>
> BI01 = :NSO.CIN
> BI02 = :NSC.CIN
>
> STEP 1 - IN BI01
> STEP 2 - OUT O01 ; BIT 1 OF
LO01 ENABLES OPEN INDICATION COLOUR
> STEP 3 - ;
> STEP 4
- IN BI02
> STEP 5 - OUT O02 ; BIT 2 OF LO01 ENABLES CLOSED
INDICATION COLOUR
> STEP 6 - ;
> STEP 7 - AND 2
>
STEP 8 - OUT O03 ; BIT 3 OF LO01 ENABLES LIMIT FAULT INDICATION COLOUR
> AND FLASHING
> STEP 9 - ; WITH ALL 3 OF THESE BITS
SET TO 0, THE GRAPHIC
> ELEMENT IS SET TO MID-STROKE COLOUR
> STEP 10- RBD BI01
> STEP 11- RBD BI02
> STEP 12- OR
2
> STEP 13- BIF 16 ; NEITHER INPUT BAD, CLEAR BAD FLAG
> STEP 14- SBD LO01 ; INPUT(S) BAD, SET BAD FLAG
> STEP 15-
GTO 17
> STEP 16- CBD LO01
> STEP 17- ;
> STEP 18-
END
>
> What am I missing here?
>
> In
advance, thanks.
>
> Jason Slade
>
>
Control Technologist
> Protection & Control Systems Support
> OPG / Nanticoke GS
>
>
>
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